diff --git a/domain/src/main/java/com/susu/domain/usecase/envelope/SearchSentEnvelopeListUseCase.kt b/domain/src/main/java/com/susu/domain/usecase/envelope/SearchSentEnvelopeListUseCase.kt
new file mode 100644
index 00000000..97ed4bb5
--- /dev/null
+++ b/domain/src/main/java/com/susu/domain/usecase/envelope/SearchSentEnvelopeListUseCase.kt
@@ -0,0 +1,31 @@
+package com.susu.domain.usecase.envelope
+
+import com.susu.core.common.runCatchingIgnoreCancelled
+import com.susu.domain.repository.EnvelopesRepository
+import javax.inject.Inject
+
+class SearchSentEnvelopeListUseCase @Inject constructor(
+    private val envelopesRepository: EnvelopesRepository,
+) {
+    suspend operator fun invoke(param: Param) = runCatchingIgnoreCancelled {
+        with(param) {
+            envelopesRepository.searchEnvelope(
+                friendIds = friendIds,
+                types = "SENT",
+                fromAmount = fromAmount,
+                toAmount = toAmount,
+                page = page,
+                sort = sort,
+                ledgerId = null,
+            )
+        }
+    }
+
+    data class Param(
+        val friendIds: List<Int>? = null,
+        val fromAmount: Long? = null,
+        val toAmount: Long? = null,
+        val page: Int? = null,
+        val sort: String? = null,
+    )
+}
diff --git a/feature/sent/src/main/java/com/susu/feature/envelopesearch/SentEnvelopeSearchViewModel.kt b/feature/sent/src/main/java/com/susu/feature/envelopesearch/SentEnvelopeSearchViewModel.kt
index 9a429899..38d09176 100644
--- a/feature/sent/src/main/java/com/susu/feature/envelopesearch/SentEnvelopeSearchViewModel.kt
+++ b/feature/sent/src/main/java/com/susu/feature/envelopesearch/SentEnvelopeSearchViewModel.kt
@@ -2,9 +2,11 @@ package com.susu.feature.envelopesearch
 
 import androidx.lifecycle.viewModelScope
 import com.susu.core.ui.base.BaseViewModel
+import com.susu.domain.usecase.envelope.SearchSentEnvelopeListUseCase
 import com.susu.domain.usecase.enveloperecentsearch.DeleteEnvelopeRecentSearchUseCase
 import com.susu.domain.usecase.enveloperecentsearch.GetEnvelopeRecentSearchListUseCase
 import com.susu.domain.usecase.enveloperecentsearch.UpsertEnvelopeRecentSearchUseCase
+import com.susu.domain.usecase.friend.SearchFriendUseCase
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.collections.immutable.persistentListOf
 import kotlinx.collections.immutable.toPersistentList
@@ -16,6 +18,8 @@ class EnvelopeSearchViewModel @Inject constructor(
     private val getEnvelopeRecentSearchUserCase: GetEnvelopeRecentSearchListUseCase,
     private val deleteEnvelopeRecentSearchUseCase: DeleteEnvelopeRecentSearchUseCase,
     private val upsertEnvelopeRecentSearchUseCase: UpsertEnvelopeRecentSearchUseCase,
+    private val searchFriendUseCase: SearchFriendUseCase,
+    private val searchSentEnvelopeListUseCase: SearchSentEnvelopeListUseCase,
 ) : BaseViewModel<EnvelopeSearchState, EnvelopeSearchEffect>(EnvelopeSearchState()) {
 
     fun getEnvelopeRecentSearchList() {
@@ -44,8 +48,35 @@ class EnvelopeSearchViewModel @Inject constructor(
     }
 
     fun getEnvelopeList(search: String) = viewModelScope.launch {
-        // TODO: 친구 검색 -> 결과가 있으면 봉투 검색
-        // TODO: 카테고리 검색 -> 결과가 있으면 봉투 검색
+        val searchedFriends = searchFriendUseCase(search).getOrThrow()
+
+        // 친구 검색 결과가 존재하면 봉투 검색
+        val envelopesByFriend = if (searchedFriends.isNotEmpty()) {
+            searchSentEnvelopeListUseCase(
+                param = SearchSentEnvelopeListUseCase.Param(
+                    friendIds = searchedFriends.map { it.friend.id.toInt() },
+                ),
+            )
+        } else {
+            Result.success(emptyList())
+        }
+
+        // 숫자 형식일 경우는 금액으로 봉투 검색
+        val envelopesByAmount = search.toLongOrNull()?.let { amount ->
+            searchSentEnvelopeListUseCase(
+                param = SearchSentEnvelopeListUseCase.Param(
+                    fromAmount = amount,
+                    toAmount = amount,
+                ),
+            )
+        } ?: Result.success(emptyList())
+
+        // 두가지 조건을 검색 완료 시 결과를 통합 표시
+        if (envelopesByFriend.isSuccess && envelopesByAmount.isSuccess) {
+            val searchedEnvelopes =
+                envelopesByFriend.getOrDefault(emptyList()).map { it.envelope } + envelopesByAmount.getOrDefault(emptyList()).map { it.envelope }
+            intent { copy(envelopeList = searchedEnvelopes.toPersistentList()) }
+        }
     }
 
     private fun updateRecentSearchList(searchList: List<String>) {
@@ -53,5 +84,4 @@ class EnvelopeSearchViewModel @Inject constructor(
             copy(recentSearchKeywordList = searchList.toPersistentList())
         }
     }
-
 }